Valve



R o N N o c 0 K G VALVE Filed Feb. 5, 1936 Inventor Geoz qeK U'CamzoPatented May 3, 1938 PATENT OFFICE VALVE George K. OGonnor, Evanston,111., assignmto Republic Flow Meters Company, Chicago, 111.,

a corporation of Illinois Applitation'February 5, 1936, Serial No.82,388 2 Claims. (Cl. 137-439) In the illustrated arrangement, the leveris movable in a slot formed in a guide mounted on the body of the valve(for example carried by .arms extending from a cap removably secured toM the valve body), and is pivoted to the end of the valve stem slidablein the guide and in a bearing in the valve body (for example in saidremovable cap) and which operates the valve member proper. I

There are a pair of links, or equivalent parts, pivoted to a part of thevalve body, and preferably to the removable cap and which are connectedby coaxial pivots to a. slide adjustably secured to the lever atone sideof the slotted guide. The illustrated slide is U-shaped in form, havingarms 25 connected to the links as described, and having a centralportion slidably embracing and adjustably secured to the lever.

Thus by adjusting the slide on the lever, the fulcrum of the lever isreadily shifted, to vary the opening of the valve caused by'the samethrow of the end of the lever which is connected to the regulator. 7

The above and other objects-and features of the invention, includingvarious novel combinations of parts and desirable particularconstructions,-

will be apparent from the following description of the illustrativeembodiment shown in the accompanying drawing, in which: r 40 Figure 1 isa section through the valve and its novel operating linkage;

Figure 2 is a perspective view of part of the linkage, illustrating oneextreme position in which movement of the lever causes no actuation ofthevided with a double valve seat 20. The entrance passage to the valvehas a diverter II which prevents side thrust on the valve stem describedbelow.

The cap I2 is shown provided with a bearing 22, suitably packed,slidably embracing a valve stem 24 carrying within the valve body adouble valve member 28 cooperating with the double seat 28. Theillustrative valve member 26 and seat are shaped to give a straight-linefunction as m the valve is opened. The diverter i'l prevents side thruston the valve stem 24 and consequent wear on the hearings in which itslides.

The cap l2 also carries arms 28 provided (integrally, as illustrated)with a slotted guide 30 1 for a guide plunger'32 adjustably threaded tothe end of the valve stem 24 and in effect forming an extension of thevalve stem.

The plunger 32 is slotted to embrace a lever 34 formed with openings 36for a pivot connecting it to the regulator described in my applicationNo. 20 31,380, filed July 15, 1935. The plunger is connected to thelever by means such as a, pivot 38. The lever 34 is arranged to bemovable in the slot of the guide 30.

A pair of links 40 is connected by a pivot or coaxial pivots 42 to thevalve body, for example by being pivoted to the arms 28 carried by thecap l2, on one side or the other of the guide 30. Both sets of arms 28may be formed with 30 bearings for the pivot 42, so that lever 34 mayextend in either direction.

Connected to the links 40 by means such as coaxial pivots 48 are thearms of a U-shaped slide 48 slidably embracing the lever 34 beyond theguide 30. The slide 48 is adjustably secured to the lever 34 by meanssuch as set-screws 58.

It will be seen that the slide 48 may be adjusted to the position ofFigure 2, with the pivots 46 coaxial with respect to the pivot 38, inwhich position movement of the lever 34 causes no moveinent of the valvestem 24. Or it may be adjusted to a position such as shown in Figure 3,with the pivots 48 spaced from the pivot 38, in which case movement oflever 34 causes a movement of the valve stem 24 in proportion to thedistance of the fulcrum pivots 46 from the pivot 38.

, While one illustrative embodiment has been described in detail, it isnot my intention to limit the scope of the invention to that particularem- 50 bodiment or otherwise than by the terms of the appended claims.

I claim: 1. A valve comprising a valve body having at one side a bearingand a valve member having a oi said valve stem having a slottransversely therethrough, a lever movable in said slot and pivoted tothe end of the valve stem, links pivoted to the valve body, and aU-shaped slide having arms connected to said links by coaxial pivots andhaving a central-portion slidably embracing and ad- Justably secured tosaid lever at one side of said guide.

2. A valve comprising a valve body having at one side a removable capformed with a bearing and a valve member vvithin the valve body hav-9,115,001! stem slidable in said bearing, a guide i'or the end

